Home / 10,366.65-15,537.83-7,766.55

Finding the Fourth Proportional to 10,366.65, 15,537.83 and 7,766.55

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Solution

The fourth proportional to 10,366.65, 15,537.83 and 7,766.55 is: 11,640.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,366.65 : 15,537.83 = 7,766.55 : x
  2. Step 2: Convert to fraction form
    10,366.65/15,537.83 = 7,766.55/x
  3. Step 3: Cross multiply
    10,366.65x = 15,537.83 × 7,766.55
  4. Step 4: Simplify right side
    10,366.65x = 120,675,294.75
  5. Step 5: Solve for x
    x = 120,675,294.75/10,366.65
  6. Step 6: Final answer
    x = 11,640.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.